Cisco ASR 903 - Configuration for Rlfa (with OSPF); Configuration for Rlfa (with ISIS)

LFA & Remote LFA (rLFA)
BFD Triggered TE Fast Reroute ▀
Cisco ASR 903 Router Design and Deployment Guide▄
OL-30526-01
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ASR903-R1#show ip cef 172.16.4.4 de
172.16.4.4/32, epoch 2, per-destination sharing
local label info: global/30
nexthop 10.10.1.2 GigabitEthernet0/2/0 label [16|18]
repair: attached-nexthop 10.10.2.2 GigabitEthernet0/2/2
nexthop 10.10.2.2 GigabitEthernet0/2/2 label [18|16]
repair: attached-nexthop 10.10.1.2 GigabitEthernet0/2/0
Configuration for rLFA (with OSPF)
ASR903-R1 Configuration
mpls label protocol ldp
mpls ldp explicit-null
mpls ldp session protection
mpls ldp router-id Loopback0 force
!
router ospf 1
router-id 172.16.1.1
fast-reroute per-prefix enable prefix-priority low
fast-reroute per-prefix remote-lfa tunnel mpls-ldp
network 172.16.1.1 0.0.0.0 area 0
network 10.10.1.0 0.0.0.255 area 0
network 10.10.2.0 0.0.0.255 area 0
ASR903-R4 Configuration
!
mpls ldp discovery targeted-hello accept
mpls ldp router-id Loopback0 force
!
router ospf 1
router-id 172.16.4.4
network 172.16.4.4 0.0.0.0 area 0
network 10.10.4.0 0.0.0.255 area 0
network 10.10.5.0 0.0.0.255 area 0
Configuration for rLFA (with ISIS)
ASR903-R1 Configuration
!
mpls label protocol ldp
mpls ldp explicit-null
mpls ldp session protection
mpls ldp router-id Loopback0 force